Tasik Biru (Blue Lake)

Tasik Biru, also known as Blue Lake, is a former open-cast gold mine turned artificial lake in Bau town, Sarawak, about 35 kilometres southwest of Kuching. The lake is noted for its distinctive blue-green water caused by minerals from past mining activity. Surrounded by limestone hills and a landscaped lakeside park, it serves as a scenic recreational spot and a landmark of Bau's historic gold mining heritage dating to the 19th century.

Visitors can expect a large, calm artificial lake with striking blue-green water set against limestone hills and greenery in the centre of Bau town. The lake is encircled by a paved lakeside promenade, viewing platforms, seating areas and a small park. Visitors can walk around the lake, take photographs of the water and hills, relax at lakeside stalls and observe remnants of the former gold mining landscape. Swimming and water contact activities are not available.

Tasik Biru is a flooded open-cast gold mine that reflects Bau's history as Sarawak's principal gold mining centre since the 1840s. Gold mining was developed by Chinese miners and later by the Borneo Company Limited under the Brooke administration. After mining operations ceased, the pit filled with water to form the present lake, which retains high mineral and arsenic content from mining activity.

The lake is a cultural landmark symbolizing Bau's gold mining heritage and the legacy of the Chinese mining community that settled in the district. It is a central recreational and social space for the local community and a point of interest for visitors learning about Sarawak's mining history.